Arrangement for generating high power by ultra short waves



July 2 1935. w RUNGE r AL 2,006,904

ARRANGEMENT FOR GENERATING HIGH POWER BY ULTRA SHORT WAVES Filed Feb. 28, 1933 INVENTORS WILHELM RUNGE WALDEMAE ILBERG ATTORN EY Patented July 2, 1935 I 2,006,90i

- TED rs'mrss PAT EaNT o Prior.

- ARRANGEMENT'FOR QENERAEINGJIIGH POWERTBY IJUDRAaSHORT "Wilhelm Rungc, Waldemar "Ilberg, and Heinz Lux, Berlin, Germany, assignors to Telefunken Gesellscha'ftfiir Dra htlose Telegraphiemblfl Berlin, "Germany, a corporation-of Germany vApplication February 28, 1=933, Seri alNo. 658,938 In Germany Februanyt13, 1932 iifllaims. :(c1.- 250-336)" It isknown that up to 'the' pr'esent time no CieS- h ay-zbeaocomplish'ed by arranging reallysatisfactory-results'have been obtained in K s'W thm the bulb\as=we11 as, a t t l' ircujts'inithe generation usecof'arrangements in which the battery :ter-i dflultm Short reason for w h mlnals are connected to points of the'sy'stem free been thgtxthe-applicatiunlof any appreciable grid from high frequencypotentials. 3'

amematmg potential to an amplifier tube ys- In the accompanyingwdrawing Figure 1 shows, temat -the ultra high frequencies, requires the we f exampl wan embodimen ac rdin furnismng of near-1y ,asimucmpower as can be the -invention'; and Figure :2 -shows :another emdelivered by the system in'zthef-orm of =anode Ofithe F -P 11)- power; The'losses in the'grid circuit are-essent fll e ,3the rid'fi of the'main 1'0 tially :caused 'at all the contact :points of the rtube comprisi an an d s sh wn oscillatory sgrid circuit :with dielectric imaterial; e-rStem'4 ofithe main tube lay-means particularly at :the place where1the=grid lead iexof :a metallic conducting loopl integral *with 9. tends mt glass b lb and ,also' at the metallicshell 3 zsurroundingnthe stem. The os- -5 placewherethegridiissupporte'dby the dielectrie cillatory rid circuitcomprises the loop'2, th 3 material. Further, it .=has :been. found that the pacitative aconnection from/the -s'hell 3 integral iong supply ilea'd'throughthe 'bulb to the grid i o pfl to the fi ament eadswit in em i causes :such a vgrid tocathodeqcapacity t tthe cathodez5randthescapacity between the-oath considerable potential iat this :capacity causes edez'andiithe grid 6. iIn thi's manner the loop or wattlessz'currents which, in flaurn, entailaconsidin c 4 p i vc y associa'te'd with the gu erablelosses in :the conducting parts of the oscilcathode '5, :the clamping iring 3 constituting latory grmgcircuit H coat of a condenser whosedie'lectric consists 'of ,lln oriier to overcome theserdilficulties the ;fol-- the-"glass material of the stem "4, the-'secondcoat varrangementaisi-p roposed :in iaccordance consisting Iofltheifilament leads within thel'stem.

1 withthe present "invention. Since-fthere exist's a low radio frequency voltage at "I'lreoscillatory grid-circuit,- tunedtothe ultra, the'end'ofloop Z'ne'arest'thegrid, the dielectric short wave'to be amplified, isnotpassed through, losses in the capaclty'ofthe'other end of the loop the wall of the bulb but "is arranged within the areapprieciably low. The anode 'l is brought out bulb proper. The fastening to the dielectric :of of the container comprising the glass bulb the tube structure is made infsuch manner that through a seal, as shown, and connected to the 3f onlyf.circuit elements carrying low potential eX- anode oscillation circuit LI, 0 which is coupled tend c os y "to the oscillatory circuit, whereas to the antenna A. The grid oscillatory circuit '2' the parts of "the oscillatory :circuitparryin'g hig is coupled "inductively with the anode circuit of potential extend freely within the vacuum bulbthe'i ir'st or input tub'e whichcomprises the con- For supplying power to this oscillatory circuit, plin'g anoderlead gftogetherwiththe d gh a source :of ultra shortwave ner y is arranged ode capacity of the first tube formed'by anode 1 within the same env pe, and it is this source and its cathode this 'circuit being also tuned which furnishes the frequency f r whi h h grid to the operating frequency. The anode circuit circuit is dimensioned. This source may either 8 is so dimensioned that it will be in resonance 40 be an arrangement which is s lf x i d in the with the working frequency. It is preferred, as '40 ultra short Wav r i m y consist of a will be described later, that the electrode system hausen-Kurz arra ge y be designed of the first tube be supplied with a lower freaS a plication stage which y either be quency and to thereupon multiply the frequency. S excited, y a low q y, 1 may be con Higher harmonics of the fundamental wave may trolled by an alte nat n potential at low thus be obtained in anode circuit 8 which is tuned 45 qu cy from a e e a arranged outside the to the-desired harmonic. It is assumed that this bulb. In the latter case the control of this tube first or input tube in this arrangement operates through the wall of the bulb is considerably simas a multiplying stage. pler than in the case of direct control of an Figure 2 shows a push-pull arrangement in ultra short wave tube in view of the relatively which the center of the oscillating grid circuit, 50

low frequency compared with the ultra short i. e. thecenter of the loop l2 connecting the two waves, grids l6, I6 does not carry high frequency, but It is advisable to design the amplifying tube is fastened to the stem 4 and is led to the outside with a view toward keeping the leads which exfrom such connecting point. p 65 tend through the bulb free from high frequen- In the operation of the circuit and referring to Figure 1 in more detail, the alternating current voltage to be multiplied is fed to the coil L which is inserted between the grid G and the filament K of the first or input tube. Connected in the battery supply leads are choke coils D which prevent the flow or drain of radio frequency energy into the source of potential and thus cause a reaction of the battery lead upon the tuning of the oscillation circuits. The plate circuit of the second stage consists of an inductance LI and a tuning condenser C. The antenna A, being of the dipole type, is in coupling relationship with the antenna circuit by way of the condenser C.

Figure 2 involves the same'principle, but employs a push-pull stage. The input voltage of lower frequency is fed to the grid G by way of the tuned circuit LC. The plate inductance 8,

similarly as in the preceding illustration, is in coupling relation with the grid circuit l2 of the end or power stage. Connected to the two plates [0 and H of the power stage is the output circuit LI, Cl from which the resultantenergy is fed into the aerial A by way of a coupling loop M.

We claim:

1. An ultra short wave generator system comprising within a single container two sets of electrodes, each including an anode, a cathode and a grid, the anode of one set being inductively coupled to the grid of the other set within said container solely through leads which are individual to said last electrodes and located adjacent each other, one of said sets of electrodes comprising a source of ultrashort waves and the other of said sets comprising a power amplifier, means exter- 118.1 of said'container for energizing said electrodes through leads extending through said container, high frequency choke coils serially connected in certain of said leads with respect to said'means and said electrodes, and a utilization circuit comprising an antennacoupled to a parallel tuned circuit of capacity and inductance in circuit with said power amplifier.

2.; An ultra short wave generator system comprising within a single container two sets of electrodes, each including at least an anode and a grid, the anode of one set being inductively coupled to the grid of the other set within said container solely through twophysically separated, substantially semi-circularly arranged leads located near each other, said leads being individual to said last electrodes, one of said sets of electrodes comprising a source of ultra short waves and the other 01' said'sets comprising a power amplifier, said power amplifier comprising a pushpull type of system having two groups of electrodes, each of said groups including an anode and a grid, the anodes and gridsof said groups being respectively connected together, and a parallel tuned circuit of capacity and inductance located externally of said envelope in the output of said amplifier, means external of said container for energizing said electrodes through leads extending through said container, and a utilization circuit coupled to said parallel tuned circuit.

3. An ultra short wave oscillation generator system comprising within a single container first and second sets of electrodes, each including an anode, a cathode and a grid, a stem of insulating material for supporting each set of electrodes within said container, means externally of said container for energizing said electrodes, leads for said cathodes extending through said stems to said energizing means, the anode of said first set of electrodes being inductively coupled to the grid of said second set through two physically separated leads within said container, located near and inductively coupled to each other; said leads being individual to said lastelectrodes, said lead which is individual to the grid of said sec-, ond set being supported by its associated stem and comprising with the cathode leads within said stem a capacitance whose dielectric is the stem, said first set of electrodes comprising a source of oscillations, and a utilization circuit coupled to the anode of said second set.

l. An ultra short wave oscillation generator system comprising within a single container first and second sets of electrodes, each including an anode, a cathode and a grid, a stem of insulating material for supporting each set of electrodes within said container, means externally of said container for energizing said electrodes, leads for said cathodes extending through said stems to said energizing means, the anode of said first set of electrodes being inductively coupled to the grid of said second set through two physically separated leads within said container, located near and in ductively coupled to each other, said leads being individual to said last electrodes, said lead which is individual to the grid of said second set being supported by its associated stem and comprising with the cathode leads within said stem a capacitance whose dielectric is the stem, a source of relatively lower frequency energy coupled to the grid and cathode of said first set, said anode of said first set being so dimensioned as to tune the output of said first set of electrodes to a harmonic of said lower frequency, and a utilization circuit coupled to the anode of said second set.

WlLI-IELM RUNGE. WALDEMAR ILBERG. I-IEINZ LUX. 

